CN210085290U - Device for granulating molten smelting slag glass and recovering waste heat - Google Patents
Device for granulating molten smelting slag glass and recovering waste heat Download PDFInfo
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- CN210085290U CN210085290U CN201920685593.8U CN201920685593U CN210085290U CN 210085290 U CN210085290 U CN 210085290U CN 201920685593 U CN201920685593 U CN 201920685593U CN 210085290 U CN210085290 U CN 210085290U
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Abstract
The utility model relates to a device for granulating melting smelting slag glass and recovering waste heat, which comprises: the device comprises a chute (1), a tundish (2), a diversion trench (3), a granulating chamber (4), a granulating fan (5), a blast groove (6), a tubular heat exchanger (8), a cooling fan (9), a spiral discharger (10) and a lifter, preferably a bucket lifter (11), a finished product bin (12), a plate heat exchanger (14), a first steam pipe (15), a second steam pipe (15), a generator set (16) and a purification and discharge device. The device converts the melting smelting slag into glass-state particles, thereby being beneficial to resource utilization, simultaneously recovering waste heat, realizing the maximized recovery of melting smelting slag resources, realizing the high-efficiency, equipment, automation, harmlessness and resource treatment of the melting smelting slag, realizing the ultralow emission in the treatment process, and having the outstanding process and environmental protection advantages.
Description
Technical Field
The utility model relates to a device for granulating molten smelting slag glass and recovering waste heat, in particular to a device and a method for efficiently converting high-temperature liquid smelting slag into vitreous body for granulating and recovering waste heat.
Background
China is a large industrial country, a plurality of high-temperature smelting enterprises such as steel, nonferrous metal and the like exist, and the main metal yield is basically about more than 50 percent of the global yield. Along with the production of a large amount of metals, a large amount of high-temperature smelting slag is generated, such as blast furnace slag, steel slag, copper slag, nickel slag and other bulk smelting slag. At present, the resource utilization rate of smelting slag in China is low and is less than half, a large amount of waste slag is still piled up and abandoned, a large amount of land is occupied, and great potential environmental safety hazards exist.
Smelting slag often contains a large amount of inorganic materials and has the potential of building material product preparation, at present, the smelting slag at home and abroad is often subjected to simple water quenching, hot splashing or slow cooling treatment, the treated smelting slag is often low in price or directly delivered, and the resource utilization level needs to be improved. The slag temperature of the smelting slag is usually over 1300 ℃, the heat value of each ton of slag is not less than 40 kilograms of standard coal, and the method has high heat resource recovery value. However, the waste heat resources of the smelting slag in the existing treatment process are wasted, and cannot be effectively recovered, so that the waste heat resources are significant resource waste. The annual production of smelting slag in China is more than 5 hundred million tons, and if the slag heat resources are completely utilized, huge economic and environmental benefits are generated, so that the significance is very great.
The vitrification of the smelting slag has a plurality of advantages, and is beneficial to the harmless and resource utilization of the smelting slag. On one hand, the rapid cooling vitrification can prevent the slag from being transformed into a crystal structure to cause the reduction of the gelling activity of the slag, and simultaneously, the high hardness of the crystal structure is avoided to be unfavorable for preparing the powder material by grinding to be applied to cement or concrete admixture. Vitrification greatly reduces the content of ionic components of harmful heavy metal elements in the smelting slag, has the effect of solidifying and stabilizing the heavy metal elements, and is expected to realize the harmless treatment of the smelting slag. In conclusion, the vitrification process of the smelting slag is very important, and plays a very key role in resource utilization of the smelting slag.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model discloses a device of glass pelletization, waste heat recovery integration changes melting smelting slag into glass state's granule, carries out waste heat recovery simultaneously, realizes the maximize of melting smelting slag resource and retrieves. The utility model discloses realize under comparatively economic condition that melting smelting slag is high-efficient, equip the ization, automatic, innoxious, resourceful treatment, the realization ultra-clean of processing procedure discharges, has outstanding technology and environmental protection advantage, the promotion smelting slag treatment process technology's that will show progress, realizes smelting slag zero release early.
The utility model relates to a device for granulating melting smelting slag glass and recovering waste heat, which comprises: the device comprises a chute, a tundish, a diversion trench, a granulation chamber, a granulation fan, an air blowing trench, a tubular heat exchanger, a cooling fan, a spiral discharger and a lifter, wherein the lifter is preferably a bucket lifter, a finished product bin, a plate type heat exchanger, a first steam pipe, a second steam pipe, a generator set and a purification and discharge device; the chute is connected with the tundish and used for enabling the molten smelting slag to flow into the tundish through the chute, the tundish is connected with the granulating chamber through the diversion trench and used for enabling the molten smelting slag in the tundish to flow into the granulating chamber through the diversion trench, the granulating chamber is connected with the granulating fan through the blast groove and used for blowing out cold air generated by the granulating fan through the blast groove so as to rapidly cool the molten smelting slag flowing out of the diversion trench and convert the molten smelting slag into glass slag, and the tubular heat exchanger is arranged below the granulating chamber and enables the high-temperature glass slag to fall into the tubular heat exchanger for heat exchange; a spiral discharger is arranged below the tubular heat exchanger and used for conveying the glass slag subjected to heat exchange into the spiral discharger; the spiral discharging device is connected with the finished product bin through a lifter and is used for lifting the glass slag in the spiral discharging device into the finished product bin; the cooling fan is connected between the tubular heat exchanger and the spiral discharging device through a first air pipe; the cooling device is used for blowing cold air generated by the cooling fan into the space between the tubular heat exchanger and the spiral discharging device to supplement and cool the high-temperature glass slag; the upper end of the granulating chamber is connected with the plate heat exchanger through a second air pipe, cold air blown in by the granulating fan and the cooling fan is subjected to heat exchange to obtain hot air, and the hot air is conveyed to the plate heat exchanger through the second air pipe; the plate heat exchanger is connected with the purification and discharge device through a third air pipe, the plate heat exchanger is connected with the generator set through a first steam pipe, the tube heat exchanger is connected with the generator set through a second steam pipe, the tube heat exchanger and the plate heat exchanger generate pressure steam through heat exchange, and the pressure steam is conveyed to the generator set through the first steam pipe and the second steam pipe to generate electricity.
The purifying and discharging device comprises a bag-type dust collector, an induced draft fan and a chimney, the plate-type heat exchanger is connected with the inlet end of the bag-type dust collector through a third air pipe, the outlet end of the bag-type dust collector is connected with the chimney through the induced draft fan, smoke subjected to heat exchange by the plate-type heat exchanger is conveyed to the bag-type dust collector through the third air pipe, and is discharged outside through the chimney under the action of the induced draft fan.
And refractory heat-insulating materials are arranged in the chute, the tundish, the diversion trench and the granulating chamber.
Wherein, the guiding gutter has slender type export, slender type export aspect ratio is not less than 10 to guarantee that the smelting slag is the liquid level form and flows into the graining thorax.
Wherein, the outlet of the blast groove is arranged right below the slender outlet of the diversion groove; the outlet of the blast groove is provided with an air outlet, so that the blast flow field is uniform, and the length of the blast groove corresponds to that of the diversion trench so as to facilitate granulation of the molten smelting slag glass.
And heat insulation materials are arranged outside the first air pipe, the second air pipe and the third air pipe for external heat insulation, and heat insulation materials are arranged outside the first steam pipe and the second steam pipe for external heat insulation.
The device also comprises a central control system, wherein the central control system is connected with the tundish, the granulating fan, the tubular heat exchanger, the cooling fan, the spiral discharging device, the elevator, the finished product bin, the air pipe, the plate type heat exchanger, the steam pipe, the generator set, the bag type dust collector and the induced draft fan; the central control system is used for controlling the liquid level of the tundish; the central control system is used for carrying out on-off control and parameter adjustment control on the granulating fan, the tubular heat exchanger, the cooling fan, the spiral discharger, the hoister, the plate heat exchanger, the generator set, the bag type dust collector and the induced draft fan; the central control system is used for controlling the unloading of the finished product bin; and the central control system is used for adjusting the opening degrees of the air pipe and the steam pipe.
The utility model also relates to a method for granulating the melting smelting slag glass and recovering the waste heat by adopting the device, which comprises the following steps:
(1) the molten smelting slag uniformly flows into the tundish through the chute and then uniformly flows into the granulating hearth through the diversion trench, and the smelting slag stably flows into the granulating hearth by controlling the liquid level of the tundish in the optimal treatment process;
(2) starting a granulation fan, uniformly blowing out cold air generated by the granulation fan through an air blowing groove, and rapidly cooling the smelting slag flowing out of the diversion groove, so as to rapidly reduce the temperature of the molten smelting slag to be below 800 ℃; the melting smelting slag is quenched and converted into glass slag, and the particle size of the glass slag is preferably within 15 mm;
(3) high-temperature glass slag falls into the tubular heat exchanger for heat exchange, and meanwhile, cold air is blown in by the cooling fan from the space between the tubular heat exchanger and the spiral discharging device to supplement and cool the high-temperature glass slag;
(4) cooling the glass slag to below 100 ℃, discharging the glass slag through a spiral discharging device, and lifting the glass slag to a finished product bin by using a lifter for storage;
(5) the cold air blown in by the granulating fan and the cooling fan is subjected to heat exchange to obtain hot air with the temperature of more than 400 ℃, and the hot air is conveyed to the plate heat exchanger through a first air pipe; pressure steam is generated after heat exchange is carried out through the tubular heat exchanger and the plate heat exchanger, and the pressure steam is conveyed to the generator set through the first steam pipe and the second steam pipe to generate electricity;
(6) the temperature of the flue gas after heat exchange by the plate heat exchanger is reduced to below 200 ℃, and the flue gas is connected with a purification and discharge device through a third air pipe to be discharged; preferably, the dust is conveyed to the bag type dust collector of the purification and discharge device through a third air pipe and is discharged outside through a chimney of the purification and discharge device under the action of a draught fan of the purification and discharge device.
The steps are controlled by performing off-line operation through a central control system.
Wherein, the content of vitreous body in the obtained glass slag after the smelting slag is processed reaches more than 95 percent. Preferably, the temperature of the glass slag finally transported to the finished product bin does not exceed 80 ℃. Preferably, the electric energy generated by the smelting slag per ton exceeds that of the slag after the smelting slag is treated by the method
25 kWh. Preferably, the concentration of the discharged flue gas after the treatment by the method is lower than 10mg/m3
The technical scheme of the utility model as follows:
a fusion smelting slag glass granulation and waste heat recovery device, comprising: the device comprises a chute, a tundish, a diversion trench, a granulation chamber, a granulation fan, an air blast trench, glass slag, a tubular heat exchanger, a cooling fan, a spiral discharger, a bucket elevator, a finished product bin, an air pipe, a plate type heat exchanger, a steam pipe, a generator set, a bag type dust collector, an induced draft fan, a chimney and a central control system; the chute is connected with the tundish, and the tundish is connected with the granulating chamber through the diversion trench; the granulation chamber is connected with the granulation fan through the blast groove; a tubular heat exchanger is arranged below the granulating chamber, and the tubular heat exchanger is connected with a cooling fan through an air pipe; a spiral discharging device is arranged below the tubular heat exchanger; the spiral discharging device is connected with a finished product bin through a bucket elevator; the granulating chamber, the plate heat exchanger, the bag-type dust collector, the induced draft fan and the chimney are connected through an air pipe; the tubular heat exchanger, the plate heat exchanger and the generator set are connected through a steam pipe.
The utility model also relates to a method for granulating the melting smelting slag glass and recovering and treating the waste heat, which comprises the following steps:
(1) the molten smelting slag flows into the tundish through the chute uniformly and then flows into the granulating chamber through the diversion trench uniformly, and the treatment process ensures that the tundish controls a certain liquid level height to ensure that the smelting slag flows into the granulating chamber stably.
(2) Starting a granulation fan, uniformly blowing cold air out through an air blowing groove, and rapidly cooling the smelting slag flowing out of the diversion groove, so that the temperature of the molten smelting slag is rapidly reduced to be below 800 ℃; the melting smelting slag is quenched and converted into glass slag, and the particle size of the glass slag is within 15 mm.
(3) The high-temperature glass slag falls into the tubular heat exchanger for heat exchange, and the cooling fan blows cold air from between the tubular heat exchanger and the spiral discharging device to supplement and cool the high-temperature glass slag.
(4) And (3) cooling the glass slag to below 100 ℃, discharging the glass slag through a spiral discharging device, and lifting the glass slag to a finished product bin by using a bucket elevator for storage and sale.
(5) The cold air blown in by the granulating fan and the cooling fan is subjected to heat exchange to obtain hot air with the temperature of more than 400 ℃, and the hot air is conveyed to the plate heat exchanger through an air pipe; the tubular heat exchanger and the plate heat exchanger generate a large amount of pressure steam through heat exchange, and the steam is conveyed to the generator set through the steam pipe to generate electricity.
(6) The temperature of the flue gas after heat exchange by the plate heat exchanger is reduced to below 200 ℃, the flue gas is conveyed to a bag type dust collector through an air pipe and is discharged out through a chimney under the action of a draught fan.
The utility model has the advantages that the device and the method realize the granulation of the melting smelting slag glass and the waste heat recovery treatment, the process is simple, the automation degree of the equipment is high, the system treatment period is short, the economic cost is reasonable, and the treatment process meets the requirement of ultra-low emission. The smelting slag treated by the process has excellent gelling property and stability, can realize the recycling and harmless treatment of solid wastes, and simultaneously realizes the effective recycling of two resources of slag and heat.
Drawings
FIG. 1 is a schematic view of a molten smelting slag glass granulation and waste heat recovery processing device.
Fig. 2 is a schematic diagram of the position relationship among the tundish, the diversion trench and the blast trench.
Detailed Description
A device for glass granulation and waste heat recovery processing of molten smelting slag as shown in figure 1, comprising: the device comprises a chute 1, a tundish 2, a diversion trench 3, a granulation chamber 4, a granulation fan 5, a blast trench 6, a tubular heat exchanger 8, a cooling fan 9, a spiral discharger 10 and a lifter, preferably a bucket lifter 11, a finished product bin 12, a plate heat exchanger 14, a first steam pipe 15, a second steam pipe 15, a generator set 16 and a purification and discharge device; the chute 1 is connected with the tundish 2 and used for enabling molten smelting slag to flow into the tundish 2 through the chute 1, the tundish 2 is connected with the granulating chamber 4 through the diversion trench 3 and used for enabling the molten smelting slag in the tundish 2 to flow into the granulating chamber 4 through the diversion trench 3, the granulating chamber 4 is connected with the granulating fan 5 through the air blowing slot 6 and used for blowing cold air generated by the granulating fan 5 out through the air blowing slot 6 so as to rapidly cool the molten smelting slag flowing out of the diversion trench 3 and convert the molten smelting slag into glass slag 7, and the tubular heat exchanger 8 is arranged below the granulating chamber 4 and enables the high-temperature glass slag 7 to fall into the tubular heat exchanger 8 for heat exchange; a spiral discharger 10 is arranged below the tubular heat exchanger 8 and used for conveying the glass slag 7 subjected to heat exchange into the spiral discharger 10; the spiral discharging device 10 is connected with a finished product bin 12 through a lifting machine 11 and is used for lifting the glass slag 7 in the spiral discharging device 10 into the finished product bin 12; the cooling fan 9 is connected between the tubular heat exchanger 8 and the spiral discharging device 10 through a first air pipe; the cooling device is used for blowing cold air generated by the cooling fan 9 into the space between the tubular heat exchanger 8 and the spiral discharger 10 to supplement and cool the high-temperature glass slag; the upper end of the granulating chamber 4 is connected with a plate heat exchanger 14 through a second air pipe 13, cold air blown in by the granulating fan 5 and the cooling fan 9 is subjected to heat exchange to obtain hot air, and the hot air is conveyed to the plate heat exchanger 14 through the second air pipe 13; the plate heat exchanger 14 is connected with a purification and discharge device through a third air pipe 13, the plate heat exchanger 14 is connected with a generator set 16 through a first steam pipe 15, the tubular heat exchanger 8 is connected with the generator set 16 through a second steam pipe 15, the tubular heat exchanger 8 and the plate heat exchanger 14 generate pressure steam through heat exchange, and the pressure steam is conveyed to the generator set 16 through the first steam pipe 15 and the second steam pipe 15 to generate electricity. The purification and discharge device comprises a bag-type dust collector 17, an induced draft fan 18 and a chimney 19, the plate-type heat exchanger 14 is connected with the inlet end of the bag-type dust collector 17 through a third air pipe 13, the outlet end of the bag-type dust collector 17 is connected with the chimney 19 through the induced draft fan 18, smoke subjected to heat exchange by the plate-type heat exchanger 14 is conveyed to the bag-type dust collector 17 through the third air pipe 13, and is discharged outside through the chimney 19 under the action of the induced draft fan 18.
And refractory heat-insulating materials are arranged in the chute 1, the tundish 2, the diversion trench 3 and the granulating chamber 4. The first, second and third air pipes 13 are externally provided with a heat insulating material for external heat insulation, and the first and second steam pipes 15 are externally provided with a heat insulating material for external heat insulation.
As shown in fig. 2, the launder 3 has an elongated outlet with an aspect ratio not lower than 10 to ensure that the molten slag flows into the granulation chamber 4 as a liquid level. The outlet of the blast groove 6 is arranged right below the slender outlet of the diversion groove 3; the outlet of the blast groove 6 is provided with an air outlet, so that the blast flow field is uniform, and the length of the blast groove 6 corresponds to that of the diversion groove 3, so that the molten smelting slag glass can be granulated.
The central control system 20 is connected with the tundish 2, the granulating fan 5, the tubular heat exchanger 8, the cooling fan 9, the spiral discharger 10, the bucket elevator 11, the finished product bin 12, the air pipe 13, the plate heat exchanger 14, the steam pipe 15, the generator set 16, the bag type dust collector 17 and the induced draft fan 18; the device is used for controlling the liquid level of the tundish 2, opening and closing and parameter adjustment of a granulating fan 5, a tubular heat exchanger 8, a cooling fan 9, a spiral discharging device 10, a bucket elevator 11, a plate heat exchanger 14, a generator set 16, a bag type dust collector 17 and an induced draft fan 18, and opening adjustment of a finished product bin 12, an air pipe 13 and a steam pipe 15.
As shown in fig. 1 and 2, a method for glass granulation and waste heat recovery processing of molten slag includes the steps of: (1) the smelting slag flows into the tundish 2 through the chute 1 uniformly and then flows into the granulating chamber 4 through the diversion trench 3 uniformly, and the treatment process ensures that the tundish 2 controls a certain liquid level height to ensure that the smelting slag flows into the granulating chamber 4 stably. (2) Starting a granulating fan 5, uniformly blowing cold air out through an air blowing groove 6 to carry out sharp quenching on the smelting slag flowing out of the diversion groove 3, and quickly reducing the temperature of the smelting slag to be below 800 ℃; the melting smelting slag is quenched and converted into glass slag 7, and the particle size of the glass slag 7 is within 15 mm. (3) The high-temperature glass slag 7 falls into the tubular heat exchanger 8 for heat exchange, and meanwhile, the cooling fan 9 blows cold air from the space between the tubular heat exchanger 8 and the spiral discharger 10 to supplement and cool the high-temperature glass slag. (4) The glass slag 7 is cooled to below 100 ℃ and discharged by a spiral discharger 10, and the glass slag 7 is lifted to a finished product bin 12 by a bucket elevator 11 for storage and sale. (5) The cold air blown in by the granulation fan 5 and the cooling fan 9 is subjected to the heat exchange to obtain hot air with the temperature of more than 400 ℃, and the hot air is conveyed to the plate heat exchanger 14 through an air pipe 13; a large amount of pressure steam is generated through heat exchange by the tubular heat exchanger 8 and the plate heat exchanger 14, and the steam is conveyed to the generating set 16 through the steam pipe 15 to generate electricity. (6) The temperature of the flue gas after heat exchange by the plate heat exchanger 14 is reduced to below 200 ℃, the flue gas is conveyed to the bag type dust collector 17 through the air pipe 13 and is discharged out through the chimney 19 under the action of the induced draft fan 18.
The operations in the steps can be performed through off-line operation of the central control system 20, and the tundish 2, the granulating fan 5, the tubular heat exchanger 8, the cooling fan 9, the spiral discharger 10, the bucket elevator 11, the finished product bin 12, the air pipe 13, the plate heat exchanger 14, the steam pipe 15, the generator set 16, the bag type dust collector 17 and the induced draft fan 18 are controlled through programming. Wherein, the content of vitreous body in the glass slag 7 obtained after the smelting slag is processed reaches more than 95 percent. Wherein the temperature of the glass slag 7 finally transported into the finished product bin 12 after the treatment by the process is not more than 80 ℃. Wherein, the power generation per ton of the molten smelting slag treated by the process exceeds 25 kWh. Wherein, the concentration of the discharged flue gas after the process treatment is lower than 10mg/m3。
Claims (7)
1. An apparatus for glass granulation and waste heat recovery of molten slag comprising: the device comprises a chute (1), a tundish (2), a diversion trench (3), a granulation chamber (4), a granulation fan (5), a blast groove (6), a tubular heat exchanger (8), a cooling fan (9), a spiral discharger (10), a bucket elevator (11), a finished product bin (12), a plate type heat exchanger (14), a first steam pipe (15), a second steam pipe (15), a generator set (16) and a purification and discharge device; the device is characterized in that a chute (1) is connected with a tundish (2) and used for enabling molten smelting slag to flow into the tundish (2) through the chute (1), the tundish (2) is connected with a granulating chamber (4) through a diversion trench (3) and used for enabling the molten smelting slag in the tundish (2) to flow into the granulating chamber (4) through the diversion trench (3), the granulating chamber (4) is connected with a granulating fan (5) through an air blowing groove (6) and used for blowing out cold air generated by the granulating fan (5) through the air blowing groove (6) so as to rapidly cool the molten smelting slag flowing out of the diversion trench (3) and convert the molten smelting slag into glass slag (7), and a tubular heat exchanger (8) is arranged below the granulating chamber (4) and enables the high-temperature glass slag (7) to fall into the tubular heat exchanger (8) for heat exchange; a spiral discharger (10) is arranged below the tubular heat exchanger (8) and is used for conveying the glass slag (7) subjected to heat exchange into the spiral discharger (10); the spiral discharging device (10) is connected with the finished product bin (12) through a lifting machine (11) and used for lifting the glass slag (7) in the spiral discharging device (10) into the finished product bin (12); the cooling fan (9) is connected between the tubular heat exchanger (8) and the spiral discharging device (10) through a first air pipe; the cooling device is used for blowing cold air generated by the cooling fan (9) into the space between the tubular heat exchanger (8) and the spiral discharging device (10) to supplement and cool the high-temperature glass slag; the upper end of the granulating chamber (4) is connected with a plate heat exchanger (14) through a second air pipe (13), cold air blown in by the granulating fan (5) and the cooling fan (9) is subjected to heat exchange to obtain hot air, and the hot air is conveyed to the plate heat exchanger (14) through the second air pipe (13); plate heat exchanger (14) are connected through third tuber pipe (13) and are purified discharging equipment, and generating set (16) are connected through first steam pipe (15) in plate heat exchanger (14), and generating set (16) are connected through second steam pipe (15) in tubular heat exchanger (8), and tubular heat exchanger (8) and plate heat exchanger (14) produce pressure steam through the heat transfer, and pressure steam carries to generating set (16) through first and second steam pipe (15) and generates electricity.
2. The device according to claim 1, characterized in that the purification and discharge device comprises a bag-type dust collector (17), an induced draft fan (18) and a chimney (19), the plate heat exchanger (14) is connected with the inlet end of the bag-type dust collector (17) through a third air pipe (13), the outlet end of the bag-type dust collector (17) is connected with the chimney (19) through the induced draft fan (18), the flue gas after heat exchange by the plate heat exchanger (14) is conveyed to the bag-type dust collector (17) through the third air pipe (13), and is discharged outside through the chimney (19) under the action of the induced draft fan (18).
3. The apparatus according to claim 1 or 2, characterized in that refractory insulating material is arranged inside the chute (1), the tundish (2), the baffle box (3) and the granulating chamber (4).
4. An apparatus according to claim 1 or 2, characterized in that the launder (3) has an elongated outlet with a length to width ratio not lower than 10 to ensure that the molten slag flows into the granulating hearth (4) as a liquid level.
5. The device according to claim 1 or 2, characterized in that the outlet of the blast groove (6) is arranged directly below the elongated outlet of the baffle groove (3); the outlet of the blast groove (6) is provided with an air outlet, so that the blast flow field is uniform, and the length of the blast groove (6) corresponds to that of the diversion groove (3) so as to facilitate granulation of the molten smelting slag glass.
6. The device according to claim 1 or 2, characterized in that the first, second and third air ducts are externally provided with insulation material for external insulation, and the first and second steam ducts (15) are externally provided with insulation material for external insulation.
7. The device according to claim 2, characterized in that the device further comprises a central control system (20), wherein the central control system (20) is connected with the tundish (2), the granulating fan (5), the tubular heat exchanger (8), the cooling fan (9), the spiral discharging device (10), the elevator (11), the finished product bin (12), the air pipe (13), the plate heat exchanger (14), the steam pipe (15), the generator set (16), the bag-type dust collector (17) and the induced draft fan (18); the central control system (20) is used for controlling the liquid level height of the tundish (2); the central control system (20) is used for carrying out on-off control and parameter regulation control on the granulating fan (5), the tubular heat exchanger (8), the cooling fan (9), the spiral discharging device (10), the lifting machine (11), the plate type heat exchanger (14), the generator set (16), the bag-type dust collector (17) and the induced draft fan (18); the central control system (20) is used for controlling the unloading of the finished product bin (12); the central control system (20) is used for adjusting the opening degrees of the air pipe (13) and the steam pipe (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685593.8U CN210085290U (en) | 2019-05-14 | 2019-05-14 | Device for granulating molten smelting slag glass and recovering waste heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920685593.8U CN210085290U (en) | 2019-05-14 | 2019-05-14 | Device for granulating molten smelting slag glass and recovering waste heat |
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| CN210085290U true CN210085290U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117164A (en) * | 2019-05-14 | 2019-08-13 | 中冶节能环保有限责任公司 | A kind of device and method of pair of fusion smelting slag glass granulation and waste heat recycling |
-
2019
- 2019-05-14 CN CN201920685593.8U patent/CN210085290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117164A (en) * | 2019-05-14 | 2019-08-13 | 中冶节能环保有限责任公司 | A kind of device and method of pair of fusion smelting slag glass granulation and waste heat recycling |
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